/**
 * @author xxxx
 * @description 保存cookie
 * @param {String} name 需要存储cookie的key
 * @param {String} value 需要存储cookie的value
 * @param {Number} timer 默认存储多少天
 */
 function setCookie(name: string,value: string, timer = 1) {
    const days = timer; //默认将被保存 1 天
    const exp  = new Date();
    exp.setTime(exp.getTime() + days*24*60*60*1000);
    document.cookie = name + "="+ escape(value) + ";expires="+ exp.toUTCString();
  }
  
  /**
   * @author xxxx
   * @description 获取cookie
   * @param {String} name 需要获取cookie的key
   */
  function getCookie(name: string) {
    const arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
    if(arr !== null){
      return unescape(arr[2])
    }
    return null
  }
  
  /**
   * @author xxxx
   * @description 删除cookie
   * @param {String} name 需要删除cookie的key
   */
  function clearCookie(name: string) {
    const exp = new Date();
    exp.setTime(exp.getTime() - 1);
    const cval = getCookie(name);
    if(cval !== null) {
      document.cookie = name + "=" + cval + ";expires=" + exp.toUTCString();
    }
  }
  export {setCookie, clearCookie, getCookie}